An old school friend crashed on our coach when I shared a flat in South London during my first degree. Over breakfast we got chatting about life, etc, and somehow I mentioned a new friend I'd met at university. On hearing the name, my friend asked, "what colour's his hair?". I replied it was red. "And what's his name again?" I told him . "Oh my god, that's X, my best friend in primary school when I spent a year back in Cyprus." Needless to say, I made sure I found out a few embarrassing stories to freak my new friend out.